The competition, now in its seventh year, was set up to provide meaningful competition for club teams at the Under 15 and 16 age grades which helps them retain players at an age where studies have found they tend to leave the game.
The competition also means clubs get to enjoy cross-district border competition against teams that they wouldn't normally encounter with sides from Bridgend, Neath Port Talbot and Swansea going head-to-head.
The club representatives were welcomed to the Liberty Stadium and had presentations from the Ospreys on ticketing offers and the BLK kit initiative, as well as a presentation from the WRU about their new staff structure within the region.
Ospreys players Ben John and Jon Fox, who played in the Ospreys Cup during their youth rugby careers for Loughor and Morriston respectively, were also on hand for a Q&A session.
In the Under 15s main competition, where clubs will compete for the Cup and Plate, the 15 sides have been split into three groups:
GROUP ONE
Mumbles
Bryncoch
Maesteg Welsh
Bridgend Athletic
Morriston
GROUP TWO
Tondu
Kenfig Hill
Bryncethin
Pencoed
Cwmavon
GROUP THREE
Dunvant
Ystradgynlais
South Gower
Resolven
Penclawdd
This season, ten Under 15's sides make up two groups in the Development Competition, where teams compete for the Bowl and Shield
GROUP ONE
Tonna
Taibach
Pontarddulais
Pyle
Gowerton
GROUP TWO
Tonmawr
Loughor
Valley Crusaders
Vadre
Swansea Uplands
Looking for the silverware in the Under 16s main competition are:
GROUP ONE
Tata Steel
Gowerton
Bryncethin
Pontarddulais
Pencoed
GROUP TWO
Bridgend Sports
Bridgend Athletic
Cwmtwrch
Neath Athletic
Eleven teams from across the region will also take part in the Under 16's Development competition hoping to take home the Bowl or Shield.
GROUP ONE
Swansea Uplands
Britton Ferry
Mumbles
Loughor
Pontardawe
Bryncoch
GROUP TWO
Dunvant
Bonymaen
Morriston
Kenfig Hill
Porthcawl
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